BOV / Recirc Valve - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

rednerd · 09-09-2003, 06:03 PM

Right now I have a GReddy FMIC and an HKS BOV. As expected the BOV causes a wicked off throttle rich condition. If i blip the throttle at idle I can hear a slight pop throught the exhaust and the inside of the tail pipes are really black. I'm afraid if I keep running the BOV I'm going to melt down my cat.

HKS offers a bypass valve kit to route my BOV output back into the intake (after the maf / before the turbo). Wouldn't plumbing the air back into the intake cause an off throttle lean condition?

I realize the air has already been metered, but still that air is hitting the manifold a second or two late

Thanks - jon.

09-09-2003, 06:03 PM	#1
rednerd Zilvia Member Join Date: Aug 2003 Location: Massachusetts Posts: 180 Trader Rating: (0) Feedback Score: 0 reviews	BOV / Recirc Valve Right now I have a GReddy FMIC and an HKS BOV. As expected the BOV causes a wicked off throttle rich condition. If i blip the throttle at idle I can hear a slight pop throught the exhaust and the inside of the tail pipes are really black. I'm afraid if I keep running the BOV I'm going to melt down my cat. HKS offers a bypass valve kit to route my BOV output back into the intake (after the maf / before the turbo). Wouldn't plumbing the air back into the intake cause an off throttle lean condition? I realize the air has already been metered, but still that air is hitting the manifold a second or two late Thanks - jon.